Welcome to HVAC-Talk.com, a non-DIY site and the ultimate Source for HVAC Information & Knowledge Sharing for the industry professional! Here you can join over 150,000 HVAC Professionals & enthusiasts from around the world discussing all things related to HVAC/R. You are currently viewing as a NON-REGISTERED guest which gives you limited access to view discussions

To gain full access to our forums you must register; for a free account. As a registered Guest you will be able to:

Participate in over 40 different forums and search/browse from nearly 3 million posts.

Ya, some have them. I know the lennox's do and so does the kairak refer system I service

If they come with the refrigerant in them, that is not a field charged unit. That is a precharged unit that needs to be field adjusted. Or if charge is lost then weigh in according to name plate. Again never on a 50 ton or completely field charged. Wayyyyyyyyyy to many variables in line size or line length. Talking here about a 7/8 liquid line and maybe a 2-5/8 or larger suction line. hmmmmmmmmmm

If you really know how it works, you have an execellent chance of fixin' er up!

The lennox 60-ton packaged dehumidifier unit has the lbs of refrigerant per circuit on it for charging. 35lbs a circuit. 2 1/2" suction.

Maybe I am misunderstanding what you are saying

We are on 2 different pages here. What you are talking about is a packaged unit. Our 20 ton package units have the charge on a name plate on them also. That is a close coupled unit. What I am referring to is a 50 or 60 ton split system with maybe one or more evaporator coils (or fan coils) for the system

If you really know how it works, you have an execellent chance of fixin' er up!

before the old b & g we had kinney cam action & seargant welch.
i have 1 of each both belt drive & on 4 wheel dollys to move around.
took 3 good guys to get them loaded on the truck.both about 20 cfm
230 volt. my 1 cfm welch scientific weighs around 65 #.

before the old b & g we had kinney cam action & seargant welch.
i have 1 of each both belt drive & on 4 wheel dollys to move around.
took 3 good guys to get them loaded on the truck.both about 20 cfm
230 volt. my 1 cfm welch scientific weighs around 65 #.

WOW. What era was that?? Not big enouh for wheels. I had a belt drive Welch. Really was a super pump. Not fun getting it to the roof.

If you really know how it works, you have an execellent chance of fixin' er up!

FYI, at AccuTools, we have a nice scale for charging, the DS-220R. With 220 lb. capacity and 0.1 oz. resolution, it is ideal for large systems and critically charging small ones. It'll measure in Lbs., Lbs & oz., oz., and kg. MITTS made a nice video of the DS-220 (the high end version, same specs additional features):